Founded in 1983, Greeneridge Sciences, Inc. is
among the first independent companies dedicated to
documenting the acoustic environment of aquatic animals.
Greeneridge provides accurate and relevant environmental
reporting with a commitment to academic-quality research,
standards-based analysis, and awareness of underlying
biological issues. Over its long history Greeneridge has
explored the calling behavior of several protected marine
species, first and most frequently beluga and bowhead
whales, and has measured and modeled underwater noise
originating from a wide variety of industrial and military
sources. These sources include propeller-driven and
jet-driven vessels, icebreakers, drill ships, and dredges;
explosions, pile drivers, and airgun arrays; rockets,
helicopters, and jet aircraft; and the construction and
operation of artificial drilling islands. Greeneridge's
quarter-century working relationship with federal, Alaskan,
and native agencies, its frequent participation on federal
expert panels, and its contributions to the literature are
evidence of its extensive reputation. Founder and
president Dr. Charles Greene co-authored the widely-read
book Marine Mammals and Noise, published in 1995 by
Academic Press, with Dr. W. John Richardson and Denis
Thomson of LGL Limited
and Dr. Charles Malme of BBN.

Greeneridge's
broad field experience encompasses both terrestrial and
marine settings, particularly in the Alaskan and Canadian
Arctic but also in Washington-state rivers, coastal
California, the Bay of Fundy, Cook Inlet, and Hong Kong.
The instrumentation used in these settings includes
boat-based or autonomous hydrophone arrays; sonobuoys
deployed from aircraft; geophones placed on ice and land;
and microphones located near aircraft or missile flight
paths.

Greeneridge maintains a professional staff of three
Ph.D. scientists and engineers. In addition, the company
retains the professional services of marine hardware,
software and electronics consultants in developing and using
instrumentation for field projects.